Linked Life Data

2453158

Source:http://linkedlifedata.com/resource/pubmed/id/2453158

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-6-23
pubmed:abstractText
Treatment of a gonococcal major outer membrane protein IB (serotype 5) with cyanogen bromide (CNBr) resulted in cleavage of PIB into three major fragments of apparent molecular weight of 15, 13, and 8 kD. The location of these peptides in the intact protein was determined by analysis of partial cleavage products. The 8 kD peptide (CB2) was found to be located in the central region of the protein. Chymotrypsin cleavage of PIB revealed a cleavage site near one of the CNBr cleavage sites. Trypsin was found to cleave the protein, either in outer membranes (OMC) or in detergent micelles, in the central CB2 fragment. These result suggest that CB2 is a part of the surface exposed region of PIB. Immunization of mice with purified PIB (serotype 5) induced antibodies against all three CB-peptides. Absorption of the sera with homologous intact OMC resulted in a complete removal of antibodies against CB2, supplying further evidence for its surface exposed nature. Antibodies against the 13 kD peptide (CB1) could not be absorbed with intact OMC, suggesting that this peptide is buried within the outer membrane. Antisera raised against CB2 of serotype 5 demonstrated a considerable cross-reactivity with heterologous outer membranes. On the contrary, intact OMC induced mainly type-specific antibodies. These data demonstrate the presence of conserved epitopes on the surface exposed CB2 peptide. These conserved epitopes are generally not very immunogenic when present in intact OMC.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0003-6072
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
493-9
pubmed:dateRevised
2011-4-7
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Antigenic and immunogenic properties of cyanogen bromide peptides from a serotype 5 gonococcal outer membrane protein I.
pubmed:affiliation
Dept. of Bacterial Vaccines, National Institute of Public Health and Environmental Protection, Bilthoven, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't